Possible Clues:

• ___ Saarinen (architect)
• Saarinen who designed the tulip chair
• London : Eric :: Helsinki : __
• Dulles airport designer Saarinen
• ___ Aarnio, innovative furniture designer
• First name in industrial design
• Interior designer Saarinen
• Architect Saarinen whose Nordic name is extremely useful in crosswords
• Saarinen known for having many vowels (and some architecture, too)
• First name in Finnish American architects